20 #ifndef LIBMESH_CELL_HEX8_H 21 #define LIBMESH_CELL_HEX8_H 24 #include "libmesh/cell_hex.h" 71 virtual ~Hex8() =
default;
86 virtual unsigned int n_sub_elem()
const override {
return 1; }
91 virtual bool is_vertex(
const unsigned int i)
const override;
96 virtual bool is_edge(
const unsigned int i)
const override;
101 virtual bool is_face(
const unsigned int i)
const override;
108 const unsigned int s)
const override;
110 virtual std::vector<unsigned int>
nodes_on_side(
const unsigned int s)
const override;
112 virtual std::vector<unsigned int>
nodes_on_edge(
const unsigned int e)
const override;
119 const unsigned int e)
const override;
136 virtual std::unique_ptr<Elem>
build_side_ptr (
const unsigned int i)
override;
142 const unsigned int i)
override;
151 virtual std::unique_ptr<Elem>
build_edge_ptr (
const unsigned int i)
override;
156 virtual void build_edge_ptr (std::unique_ptr<Elem> & edge,
const unsigned int i)
override;
160 std::vector<dof_id_type> & conn)
const override;
211 virtual void permute(
unsigned int perm_num)
override final;
226 #ifdef LIBMESH_ENABLE_AMR 232 const unsigned int j,
233 const unsigned int k)
const override 244 #endif // LIBMESH_ENABLE_AMR 249 #endif // LIBMESH_CELL_HEX8_H static const int num_nodes
Geometric constants for Hex8.
virtual std::vector< unsigned int > nodes_on_side(const unsigned int s) const override
virtual std::unique_ptr< Elem > build_edge_ptr(const unsigned int i) override
Builds a EDGE2 built coincident with edge i.
ElemType
Defines an enum for geometric element types.
virtual std::unique_ptr< Elem > build_side_ptr(const unsigned int i) override
Builds a QUAD4 built coincident with face i.
Order
defines an enum for polynomial orders.
A Node is like a Point, but with more information.
Node * _nodelinks_data[num_nodes]
Data for links to nodes.
Hex8 & operator=(const Hex8 &)=delete
virtual void connectivity(const unsigned int sc, const IOPackage iop, std::vector< dof_id_type > &conn) const override
The Hex8 is an element in 3D composed of 8 nodes.
virtual std::unique_ptr< Elem > build_side_ptr(const unsigned int i)=0
The Hex is an element in 3D with 6 sides.
IOPackage
libMesh interfaces with several different software packages for the purposes of creating, reading, and writing mesh files.
This is the base class from which all geometric element types are derived.
virtual Real volume() const override
A specialization for computing the area of a hexahedron with flat sides.
virtual std::vector< unsigned int > nodes_on_edge(const unsigned int e) const override
The libMesh namespace provides an interface to certain functionality in the library.
virtual unsigned int n_sub_elem() const override
static const unsigned int side_nodes_map[num_sides][nodes_per_side]
This maps the node of the side to element node numbers.
static const Real _embedding_matrix[num_children][num_nodes][num_nodes]
Matrix that computes new nodal locations/solution values from current nodes/solution.
ElemType side_type(const unsigned int s) const override final
virtual Order default_order() const override
static const int num_edges
static const int num_children
static const unsigned int edge_nodes_map[num_edges][nodes_per_edge]
This maps the node of the edge to element node numbers.
The BoundaryInfo class contains information relevant to boundary conditions including storing faces...
static const int nodes_per_edge
Hex8(Elem *p=nullptr)
Constructor.
virtual void permute(unsigned int perm_num) override final
Permutes the element (by swapping node and neighbor pointers) according to the specified index...
virtual ElemType type() const override
virtual bool is_node_on_side(const unsigned int n, const unsigned int s) const override
virtual bool has_affine_map() const override
virtual bool is_face(const unsigned int i) const override
virtual Point true_centroid() const override
We compute the centroid of the Hex using a customized numerical quadrature approach that avoids unnec...
static const int nodes_per_side
Defines a Cartesian bounding box by the two corner extremum.
virtual void flip(BoundaryInfo *) override final
Flips the element (by swapping node and neighbor pointers) to have a mapping Jacobian of opposite sig...
virtual Real embedding_matrix(const unsigned int i, const unsigned int j, const unsigned int k) const override
Matrix used to create the elements children.
virtual bool is_edge(const unsigned int i) const override
DIE A HORRIBLE DEATH HERE typedef LIBMESH_DEFAULT_SCALAR_TYPE Real
virtual bool is_node_on_edge(const unsigned int n, const unsigned int e) const override
virtual BoundingBox loose_bounding_box() const override
Builds a bounding box out of the nodal positions.
static const int num_sides
Geometric constants for all Hexes.
static Point centroid_from_points(const Point &x0, const Point &x1, const Point &x2, const Point &x3, const Point &x4, const Point &x5, const Point &x6, const Point &x7)
Class static helper function that computes the centroid of a hexahedral region from a set of input po...
virtual unsigned int n_nodes() const override
virtual bool is_vertex(const unsigned int i) const override
LIBMESH_ENABLE_TOPOLOGY_CACHES
A Point defines a location in LIBMESH_DIM dimensional Real space.